DC power sources for submerged arc welding
The LAF series are three phase, fan-cooled DC welding power sources designed for high productivity mechanized Submerged or high productivity MIG/MAG arc welding.
They are used in combination with ESAB’s A2-A6 equipment range and the A2-A6 Process Controllers (PEK or PEI).
LAF welding power sources have excellent welding characteristics throughout the entire current and voltage range, with particularly good starting and re-ignition properties. These power sources demonstrate good arc stability at both high and low arc voltages.
The welding power source can be adjusted and monitored from the front panel of the process controller (PEK or PEI), which permits easy adjustment of all welding parameters.
The welding current range can be extended by connecting two power sources in parallel for the most demanding application.
Highlights
• Submerged arc welding
• MIG/MAG welding
Industries
- Shipbuilding (panels, sub-components)
- Power generation (wind towers, boilers, vessels)
- Infrastructural components (beams, bridges)
- Off-road vehicles (excavators, dump trucks)
Specifications
Voltage, 3 ph 60 Hz,
Current A 100%
50 Hz
60 Hz
50 Hz
60 Hz
100% duty cycle
80% duty cycle
60% duty cycle
MIG/MAG
SAW
Open circuit power,
Efficiency
Enclosure class
Dimensions LxWxH
Application class
440
52
4x16
4x16
63
63
630/44
-
800/44
50/17-630/44
30/21-800/44
150
0.84
IP23
670x490x930
S
400/440/550
64/64/52
4x16
63
63
800/44
-
1000/44
50/17-1000/45
40/22-1000/45
145
0.84
IP23
646x552x1090
S
400/440/550
99/99/80
3x35+25/3x35+25/3x25+16
100/100/80
100/100/80
1250/44
-
-
60/17-12
40/22-1250/44
220
0.87
IP23
774x598x1428
S
400/440/550
136/136/108
3x70+35/3x70+35/3x70+35
160/160/125
160/160/125
1600/44
-
-
50/44-
40/22-1600/46
220
0.86
IP23
774x598x1428
S
Ordering
Documents
Instruction Manuals
LAF-631_1001_1251_1601.2024.pdfAdditional Documents
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